Thin plates constitute more than 80% of the structural components in shipbuilding, and butt welding is an essential technological process ship manufacturing. Different from general welding, thin plate for shipbuilding characterized by long length (≥ 15 m), narrow seam width (≤ 1 mm), high precision demands 0.5 mm). The clamping deformation, arc sparks, noise pollution during seriously affect tr...

In this article, a layered shell element-based, elastic finite element method for predicting welding distortion in multi-pass is developed. The generated each pass can be predicted by employing layer-by-layer equivalent plastic strains as thermal expansion coefficients and using the heat-affected zone (HAZ) width mesh size. final expressed sum of distortions pass. This study focuses on extracti...

A novel approach for predicting the intermetallic compound (IMC) formation during friction stir welding (FSW) of AA6061 to commercially pure copper has been developed, in addition their effect on mechanical properties. The temperature distribution aluminium weld nugget determined by a finite element model, use an Al–Cu phase diagram and elemental concentration have combined predict validate sev...